April weather forecast
South Milwaukee, WI

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Weather in April

April is a chilly spring month in South Milwaukee, Wisconsin, with an average temperature ranging between min 37.9°F (3.3°C) and max 48.7°F (9.3°C).

Temperature

April's arrival coincides with a temperature rise, moving from March's cold 39.6°F (4.2°C) to a frosty 48.7°F (9.3°C). South Milwaukee's nighttime temperature in April drops to an average of 37.9°F (3.3°C).

Humidity

The average relative humidity in April is 77%.

Rainfall

In South Milwaukee, during April, the rain falls for 12.8 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 131.9 rainfall days, and 18.54" (471mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.8 snowfall days, in April, South Milwaukee aggregates 0.98" (25mm) of snow. Throughout the year, in South Milwaukee, there are 45.2 snowfall days, and 7.83" (199mm) of snow is accumulated.

Daylight

In South Milwaukee, Wisconsin, the average length of the day in April is 13h and 26min.
On the first day of April, sunrise is at 6:31 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 7:51 pm CDT.

Sunshine

In April, the average sunshine in South Milwaukee is 7.6h.

UV index

In April, the average daily maximum UV index in South Milwaukee is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What is the average April temperature in South Milwaukee?

An average high-temperature, in April, in South Milwaukee, is 48.7°F (9.3°C) and the average low-temperature is 37.9°F (3.3°C).

What is the average humidity in April in South Milwaukee?

The average relative humidity in April in South Milwaukee, Wisconsin, is 77%.

How much does it rain in South Milwaukee in April?

In April, in South Milwaukee, Wisconsin, the rain falls for 12.8 days. Throughout April, 1.97" (50mm) of precipitation is accumulated.

What is the last month it snows in South Milwaukee?

April is the last month it regularly snows. During 1.8 snowfall days, in April, South Milwaukee aggregates 0.98" (25mm) of snow.

How many hours of daylight does South Milwaukee have in April?

In April, the average day length in South Milwaukee is 13h and 26min.

What time are sunrise and sunset in April in South Milwaukee?

On the first day of April in South Milwaukee, Wisconsin, sunrise is at 6:31 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 7:51 pm CDT.

How many hours of sunshine does South Milwaukee have in April?

In South Milwaukee, Wisconsin, the average sunshine duration in April is 7.6h.

What is the UV index reading in April in South Milwaukee?

In South Milwaukee, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
South Milwaukee, WI

Average temperature in April - South Milwaukee, WI
  • Average high temperature in April: 48.7°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in April: 37.9°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in April
South Milwaukee, WI

Average pressure in April - South Milwaukee, WI
  • Average pressure in April: 29.96"Hg

The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in April
South Milwaukee, WI

Average wind speed in April - South Milwaukee, WI
  • Average wind speed in April: 11.2mph

The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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Average humidity in April
South Milwaukee, WI

Average humidity in April - South Milwaukee, WI
  • Average humidity in April: 77%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in April
South Milwaukee, WI

Average rainfall in April - South Milwaukee, WI
  • Average rainfall in April: 1.97"

The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is February (0.75").

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Average rainfall days in April
South Milwaukee, WI

Average rainfall days in April - South Milwaukee, WI
  • Average rainfall days in April: 12.8 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in April
South Milwaukee, WI

Average snowfall in April - South Milwaukee, WI
  • Average snowfall in April: 0.98"

The month with the highest snowfall is January (2.01").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in April
South Milwaukee, WI

Average snowfall days in April - South Milwaukee, WI
  • Average snowfall days in April: 1.8 days

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
South Milwaukee, WI

Average daylight in April / Average sunshine in April - South Milwaukee, WI
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in April
South Milwaukee, WI

Average sunshine days in April - South Milwaukee, WI
  • Average sunshine days in April: 14 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (11.6 days).

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Average UV index in April
South Milwaukee, WI

Average UV index in April - South Milwaukee, WI
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in April
South Milwaukee, WI

Average cloud cover in April - South Milwaukee, WI
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in April
South Milwaukee, WI

Average visibility in April - South Milwaukee, WI
  • Average visibility in April: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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South Milwaukee, Wisconsin, USA

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